Patent · US Expired

Modacryl filaments and fibers and process for their manufacture

US4056516A · kind A · utility

3Cited by

4References

5Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Ernst-August Albers · Göttingen, DE
Walter Fester · Königstein, DE
Bernd Sassenrath

Key dates

Filing date	Feb 25, 1976
Grant date	Nov 1, 1977
Priority date	—
Expiry date	Feb 25, 1996

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F6/40
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to modacryl filaments and fibers made from copolymers insoluble in acetone of acrylonitrile and from 20 to 45 weight % of vinylidene chloride, containing from 0 to 1.5 weight % of unsaturated organic sulfonic acids or the salts thereof, and from 0 to 10 weight % of further copolymerizable compounds, which copolymers have a K value according to Fikentscher of from about 60 to about 90, and a process for the manufacture thereof. These modacryl filaments and fibers are especially distinguished by their permanent brilliance and permanent transparence; these properties are maintained even on contact with water having a temperature above 80.degree. C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.